A study presented at the annual scientific sessions of the American College of Cardiology showed use of aspirin for primary prevention in patients aged 55 years or older who had type 2 diabetes and heart failure was associated with a 10% lower risk of all-cause mortality with or without hospitalization for heart failure. The findings, based on 12,534 UK patients, however, showed aspirin use was linked to a 50% greater likelihood of nonfatal myocardial infarction or stroke.